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arXiv · 1303.2460

Thermally activated recovery of electrical conductivity in LaAlO3/SrTiO3

Snir Seri·Moty Schultz·Lior Klein
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Abstract

Patterned structures of LaAlO3/SrTiO3 that exhibit a decrease in their electrical conductivity below 30 K, recover their higher conductivity upon warming in a thermally activated process. Two dominant energy barriers $E_b$ are identified: $E_{b1}=0.224\pm0.003$ eV related to conductivity recovery near 70 K and $E_{b2}=0.44\pm0.015$ eV related to conductivity recovery near 160 K. We discuss possible linkage to structural defects such as dislocations and twin boundaries.

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Snir Seri, Moty Schultz, Lior Klein. 2013-03-11. Thermally activated recovery of electrical conductivity in LaAlO3/SrTiO3. https://doi.org/10.1103/physrevb.87.125110

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